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The adjustment system enables the blade angle to be rotated through 135° only using one hand

GPR Exhaust System Ktm Duke 790 2017/20 e4 Homologated slip-on exhaust GP Evo4 Black Titanium Aprilia - Sr 300 Max i.e. 2011/14 (2011-2014) GPR Exhaust System Aprilia TuonoGPR Exhaust System Ktm Duke 790 2017 20 e4 Homologated slip on exhaust GP Evo4 Black Titanium Homologated slip on exhaust For installation, no structural modifications to the motorcycle are required for use of the product in an approved version. It is recommended to read the instructions in the package or the tutorials visible on www. gpr. it and on youtube. For on line purchases it is necessary to activate the warranty by sending the special coupon